logic separation for join table requests

app/assets/javascripts/user/quser.js.coffee

@@ -107,7 +107,12 @@ window.Quser=
       foot = $('#active-list-table tfoot')
       Quser.build_list_table(body, foot, res)
     )
-  load_history_list: (list_id) ->
+  load_history_list: () ->
+    match = window.document.URL.toString().match('([0-9a-zA-Z]+)(\\?|$)')
+    if match
+      list_id = match[1]
+    else
+      return
     $.get(data_host + '/user/list_history/'+list_id+'.json', (res) ->
       body = $('#history-list-table tbody')
       foot = $('#history-list-table tfoot')
@@ -254,7 +259,13 @@ window.Quser=
           redirect_to 'list_products_for_table', {table_id: table.table_id}
     , 'json')
 
-  join_occupied_table: (table_id) ->
+  join_occupied_table: () ->
+    match = window.document.URL.toString().match('table_id=([0-9a-zA-Z]+)')
+    if match
+      table_id = match[1]
+    else
+      redirect_to 'user_root', {message: 'cannot_identify_table'}
+      return
     $('.form-actions').remove()
     cont = $('#join-occupied-table-progress-container')
     cont.html('')